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469.What do you think of chemistry?
In my opinion,chemistry is _______ physics.
A.a subject so difficult as
B.a subject as difficult as
C.as a difficult subject as
D.difficult as a subject as
470.What do you think of the concert?
I really enjoy it.I didn't expect it was _______ wonderful.
A.as
B.more
C.most
D.very
